Special counsel Robert Mueller's final report may not become public after it is finalized because of policies in place with the Department of Justice, Sen. John Kennedy said Wednesday, and he's worried even though attorney general nominee William Barr said in his confirmation hearing he wants to make the information public.

"What I heard Mr. Barr say yesterday, he hasn't talked with Mr. [Rod] Rosenstein or Mr. Mueller, but by his understanding, the Justice and FBI rules say Mr. Mueller will make a report to Mr. Barr and Mr. Barr will make some kind of report to Congress," the Louisiana Republican told CNN's "New Day."

"But he was even uncertain on that. He said that's one of the first things I'm going to look into."

Kennedy said he considers it important to make the report public, and he would prefer it be Mueller's original documents.

"To me, this is an unusual circumstance, and I think Mr. Mueller ought to write his report knowing that it's going to be released to the American people and then everybody can make up their own mind," said Kennedy.

"People are smart enough to figure it out. They heard so much about it and they have listened to the spin on both sides. This is an unusual circumstance and the American people need to see this report."

Kennedy said he does think that Barr's hearing before the Senate Judiciary Committee went well.

"I think if you gave everybody truth serum they would tell you that Mr. Barr did a good job yesterday, but that doesn't mean everybody will vote for him," the senator said.